13904580 has 48 divisors (see below), whose sum is σ = 40985280. Its totient is φ = 3512448.

The previous prime is 13904573. The next prime is 13904591. The reversal of 13904580 is 8540931.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4959 + ... + 7238.

It is an arithmetic number, because the mean of its divisors is an integer number (853860).

Almost surely, 2^13904580 is an apocalyptic number.

13904580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13904580 is an abundant number, since it is smaller than the sum of its proper divisors (27080700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13904580 is a wasteful number, since it uses less digits than its factorization.

13904580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12228 (or 12226 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 13904580 is about 3728.8845517125. The cubic root of 13904580 is about 240.4654163096.

The spelling of 13904580 in words is "thirteen million, nine hundred four thousand, five hundred eighty".